Engineered with Snow Technology, including QuickCool™ Cover, our most popular cooling mattress attacks overheating for 12+ hours, not just when you’re falling asleep. Pairing together conforming memory foam and encased coils, sleep has never been so refreshing.
What makes this mattress so cool?
COOLER SLEEP ALL NIGHT : Snow Technology attacks overheating from every angle to keep you comfortable longer. CONFORMING FEEL : Body-hugging memory foam soothes you to sleep and helps you wake up refreshed. ALIGN YOUR SPINE : Zoned Support™ provides proper ergonomic alignment, with softer foam around the shoulders and firmer foam under the hips, waist and lower back. DECADE OF DURABILITY : Casper mattresses use the highest-quality foams and steel coils to stay comfortable year after year. Designed for hot sleepers, the Snow cooling mattress is especially comfortable for back and side sleepers.
Measurements & Dimensions
Twin XL 38″ W x 80″ L x 12″ H x 49.3lbs Full 53″ W x 75″ L x 12″ H x 65lbs Queen 60″ W x 80″ L x 12″ H x 81lbs King 76″ W x 80″ L x 12″ H x 102lbs California King 72″ W x 84″ L x 12″ H x 102lbs Split King 76″ W x 80″ L x 12″ H x 102lbs
Materials & Certifications
Top layer of breathable memory foam coated with phase change cooling material. Second layer of zoned memory foam with thin thermal bands made of flexible graphite. (Hybrid) Durable base of polyurethane foam with encased springs. *Zoned Support™, QuickCool™, and HeatDelete® are trademarks of Casper Sleep Inc.
Warranty, Shipping, & Returns
Free shipping and free returns * – learn more about Delivery . *Additional shipping fees apply to Alaska and Hawaii. Terms and Conditions apply. Returns can be initiated after the 30-Night Adjustment Period. Subject to 10-year Limited Mattress Warranty. Learn More. Some states charge a Recycling Fee to help fund their mattress recycling programs. This state-mandated fee is added to the cost of each mattress, foundation, and bed frame you order and is not refundable.
Disclaimer
*Based on Casper testing comparing Casper products with HeatDelete™ to those without. * 92% of Casper customers keep their mattress based on a 12-month cohort of customers who purchased between May 2025-Apr 2026.
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